Duffy, who's currently playing Bobby Ewing on TNT's Dallas reboot, tells The Hollywood Reporter he'd love to reunite the Step by Step cast and reprise his role as Frank Lambert. Duffy recently proposed a reunion special to see what Frank, his wife Carol Foster (Suzanne Somers), and their combined six kids are up to these days.

"The Step by Step cast was so wonderful to be with," Duffy tells THR. "They were my family and I think a little two-hour special about where these people are — not a documentary, but actually doing a show — seeing where they all come to over the years. It would be so fun to play that goofy Frank Lambert character again, aging another 25 years."